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学术报告:Designed Nanoarchitectures of Vanadium and Phosphate-Based Cathodes for Li(Na)-Ion Batteries

来源:球探体育比分老版本 发布者:系统管理员发布时间:2016-03-10浏览次数:209

报告题目:Designed Nanoarchitectures of Vanadium and Phosphate-Based Cathodes for Li(Na)-Ion Batteries
报 告 人: Prof. Dr. Xianhong Rui (芮先宏), Anhui University of Technology
报告时间:2016年3月18日(周五)下午4:00
报告地点:物理科技楼237
报告摘要:The principal challenges facing the development of lithium ion batteries (LIBs) and sodium-ion batteries (SIBs) for hybrid electric/plugin-hybrid (HEV/PHEV) vehicles and for off-peak energy storage are cost, safety, cell energy density (voltage × capacity), rate of charge/discharge, and service life. There are exciting developments in new positive electrode (cathode) materials to replace the LiCoO2 for use in the LIBs over the past decade. Vanadium oxide cathodes with high theoretical capacity and phosphate-based cathodes with excellent cycling stability, safety, emerge as highly suitable candidates. To obtain a noticeable improvement in their electrochemical performance, it is encourage to develop nanoarchitectures by providing shorter mass transport distance, higher electrode/electrolyte contact interfaces, and better accommodation of strain upon lithium(sodium) uptake/release. Another effective approach is to design materials with conductive carbon network, providing an efficient electron pathway to offer better electrical contacts. In this seminar, I will summarize recent progress of our group in the structural design, chemical synthesis, and electrochemical properties of nanostructured vanadium oxide and phosphate cathodes (i.e., V2O5, LiFePO4, Li3V2(PO4)3, Na3V2(PO4)3, etc.) with nanocarbon networks for advanced LIB and SIB applications.
个人简介:Prof. Dr. Xianhong Rui is a Professor of Energy and Power Engineering at Anhui University of Technology, China. He received his Ph.D. in Materials Science and Engineering at the Nanyang Technological University in 2014. His current research interests mainly include design of novel nanomaterials for clean energy, especially for batteries (lithium ion battery, sodium ion battery, Li-S battery, etc.) and the fundamental science of energy storage system.